| Walking Mobility Clinics, Barrie, Cliniques de mobilité à pied | Barrie |
| Walmart Pharmacy, Alliston, Pharmacie Walmart | Alliston |
| Walmart Pharmacy, Midland, Pharmacie Walmart | Midland |
| Walton Counselling Services, Services de counselling Walton | Collingwood |
| Wasaga Artists, Artistes Wasaga | Wasaga Beach |
| Wasaga Beach Cancer Support Group, Groupe de soutien pour personnes atteintes du cancer Wasaga Beach | Wasaga Beach |
| Wasaga Beach Cooperative Nursery School, École maternelle coopérative Wasaga Beach | Wasaga Beach |
| Wasaga Beach Cruisers | Wasaga Beach |
| Wasaga Beach Fire Department | Wasaga Beach |
| Wasaga Beach Lions Club, Wasaga Beach RecPlex | Wasaga Beach |
| Wasaga Beach Ministerial Food Bank, Assistance de Noël | Wasaga Beach |
| Wasaga Beach Ministerial Food Bank, Banque alimentaire | Wasaga Beach |
| Wasaga Beach Ministerial Food Bank, Wasaga Beach, Banquet de Noël communautaire | Clearview (Comté Simcoe) |
| Wasaga Beach Snowmobile Club, Club de motoneige de Wasaga Beach | Wasaga Beach |
| Wasaga Beach United Church, Église Unie de Wasaga Beach | Wasaga Beach |
| Wasaga Beach Women's Business Association, No Physical Address, Association des femmes d'affaires de Wasaga Beach | Wasaga Beach |
| Wasaga Beach Youth Centre | Wasaga Beach |
| Wasaga Beach. Municipal Office, Wasaga Beach, Centre de vie active pour les aînés | Wasaga Beach |
| Wasaga Beach. Municipal Office, Services de transport en commun de Wasaga Beach | Wasaga Beach |
| Wasaga Beach. Municipal Office, Wasaga Beach. Bureau municipal | Wasaga Beach |
| Wasaga Community Theatre, Théâtre communautaire de Wasaga | Wasaga Beach |
| Wasaga Ganaraska Hiking Trail Club, Club de randonnées pédestre Wasaga Ganaraska | Wasaga Beach |
| Wasaga Taxi | Wasaga Beach |
| Wasaga Writers Club, club des écrivains Wasaga | Wasaga Beach |
| Waverley Caregiver Employment & Services, Emploi et services des soignants Waverly | Springwater |
| Wayne's Property Maintenance, Mobile service, Entretien de la propriété Wayne's | Wasaga Beach |
| We are the Villagers, Midland, We are the Villagers (Nous sommes les villageois), Midland - Adresse postale | Midland |
| We Are Warriors! - Canadian MS Collective, Online / Web Service, We Are Warriors! - Collectif canadien sur la sclérose en plaques | Canada |
| Wee Watch Enriched Home Child Care, Barrie, Service de garderie à domicile enrichie Wee Watch Enriched Home Child Care | Barrie |
| Wee Watch-Quality Licensed Home Child Care, Garde d'enfants Orillia | Orillia |
| Welcome Centre Immigrant Services, Centre d'accueil de Newmarket | Newmarket |
| Wellington Walk-in Clinic, Clinique sans rendez-vous Wellington | Barrie |
| Wellness and Beyond 360, Collingwood - Mobile Service | Collingwood |
| WellWise, Orillia, WellWise - Store 8470 | Orillia |
| Wellwise by Shoppers Drug Mart, Barrie | Barrie |
| Wendat Community Programs, MIdland, Club social Wendat | Midland |
| Wendat Community Programs, MIdland, Programme de jour pour aînés | Midland |
| Wendat Community Programs, MIdland, Programme de soutien à l'emploi Wendat | Midland |
| Wendat Community Programs, MIdland, Services de crise | Midland |
| Wendat Community Programs, Penetanguishene, Résidence pour seniors Lorna Tomlinson gérée par Wendat | Penetanguishene |
| Wendat Community Programs, Penetanguishene, Services pour aînés - Programme de repas communautaires | Penetanguishene |
| Wendat Community Programs, Penetanguishene, Services psychogériatriques | Penetanguishene |
| West Ridge Early Education Centre, Centre de la petite enfance West Ridge | Orillia |
| Westminster Presbyterian Church, Barrie, Église presbytérienne Westminster | Barrie |
| Westminster Presbyterian Church, Groupe de jeu parents et tout-petits Westminster | Barrie |
| Wig Boutique Barrie, Boutique des Perruques Barrie | Barrie |
| Willis Presbyterian Church. Orillia, église presbytérienne Willis. Orillia | Oro-Medonte |
| Willow Creek Baptist Church, Midhurst, Église Baptiste Willow Creek | Springwater |
| Women and Children's Shelter of Barrie | Barrie |
| Women and Children's Shelter of Barrie, Outreach Services | Barrie |
| Women and Children's Shelter of Barrie, Refuge pour femmes et enfants de Barrie | Barrie |
| World Probus, Orillia, Club Probus d'Orillia 159 | Orillia |
| Wray's Guardian Pharmacy, pharmacie Wray's Guardian | Alliston |
| Wye Marsh Wildflower Gardeners, Jardiniers de fleurs sauvages du Wye Marsh | Midland |
| Wye Marsh Wildlife Centre | Midland |